Kelly made six batches of cookies and used 17 1/4 cups of sugar. she then make and extra batch and used 7/8 cup. how many cups of sugar did kelly use all together

she has cancer, sorry but were gonna have to let kelly down

18

Step-by-step explanation:1/4 can go into 1/8 so just add it all up it gives you 8/8 so turn that into one and add it to seventeen then you get 18

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: